Why can’t I update my carrier settings
Why can’t I update my carrier settings and is that why my iPhone will say that some tasks are limited?
iPhone 8 Plus, iOS 14
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We don’t know specifically why this happened to you, and it’s doubtful anybody outside Apple and maybe the carriers can determine what happened here.
Here’s what is supposed to happen:
Update your carrier settings on your iPhone or iPad - Apple Support
Here’s what to do if it doesn’t: